Ground State of Helium

Leo Corry, Raya Leviathan

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


In 1958, Pekeris published an article entitled, “Ground state of two-electron atoms,” which was to become his most cited work. It displayed an unusual degree of proficiency in programming and exploited to their extreme the physical capacities of WEIZAC. At the core of this contribution were a series of daunting differential equations that were solved numerically, using code written by the young Yigal Accad, who in 1973 would complete a PhD on “Ocean Tides” under Pekeris.

Original languageEnglish
Title of host publicationSpringerBriefs in History of Science and Technology
PublisherSpringer Nature
Number of pages25
StatePublished - 2023
Externally publishedYes

Publication series

NameSpringerBriefs in History of Science and Technology
ISSN (Print)2211-4564
ISSN (Electronic)2211-4572

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.


  • Chaim L. Pekeris
  • Douglas R. Hartree
  • Egil A. Hylleraas
  • Ground state of the helium atom
  • Schrödinger wave equation
  • Vladimir A. Fock
  • Yigal Accad Z


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